Connecting construction for batteries and the like



March 30 1926. 1,578,265

'r. s. COLE CONNECTING CONSTRUCTION FOR BATTERTES AND THE LIKE FiledJan. 14. 1922 Patented Mar. 30, 1926.

UNITED STATES THEODORE S. COLE, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TSAFETY CAR HEAT- PATENT OFFICE.

ING 8o LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

CONNECTING CONSTRUCTION FOR BATTERIES AND THE LIKE. I

Application filed January 14, 1922. Serial No. 529,120.

To all 'wkom it may concern:

Be it known that I, THEODORE S. Conn, a citizen of the United States,and a resident of New Haven, in the county of New Haven 5 and State ofConnecticut, have invented an Improvement in 7 Connecting Constructionfor Batteries and the like, of which the following is a specification.

This invention relates to electrical con- 10 necting devices and alloysfor making same,

and with regard to its more specific feature,

to connecting devices for storage battery terminals.

' One object thereof is to provide a practical device of the abovecharacter adapted to meet the conditions of hard use.

Another object is to provide a device of 'the above nature of strong andsimple con; struction, which shall be secure and dependabl'e in action.

Another object is to provide a device of the above naturewhich can bereadily assembled and taken apart.

Another object is to provide a practical and inexpensive alloy forforming a device of the above nature.

Other objects will be in part obvious and in part pointed outhereinafter.

The invention accordingly consists in the features of construction,combinations of elements,'arrangement of parts, and combinations ofconstituents, all as will be illustratively hereinafter described in the.scope of the application which will be indicated in the followingclaims. 7

The accompanyiii drawing is a side elevation of one of t e variouspossibleembodiments of theinvention.

Referring to this drawing in detail there is shown at 1, one of themembers which is to be connected and it may .be considered a terminallead member of a storage battery. At 2 is shown the other member whichis to be connected and which may take the form ofthe le-ad'coveredmetallic eye or ring at the end of a storage battery lead.

Obviously the invention is applicable to other members, but it is ofspecial advantage in making connection between members the surface ofwhich is lead.

It being understood that the members 1 and 2 are perforated as indicatedby the dotted lines 3, there is passed therethrough a bolt having a head4 and shank 5, the

- latter being threaded and provided with a nut 6. This nut'ispreferably provided with a boss or shoulder 7.

The bolt and nut above referred to em body certain of the broaderfeatures of this invention'and as conducive to a thorough understanding,the following brief explanation is made at this point.

The connected parts being of the nature herein dealt with, there is alikelihood of injury or deterioration of the parts due to not only thecorrosive action of acid which comes in contact therewith, but toelectrolytic action between the parts. For example, if the parts to beconnected are provided with a lead surface and the connecting device beformed of brass, the difference of potential will give rise toelectrolytic action, if an electrolyte be spilled on their surface andwill quickly injure the parts. On the other hand, the use oflead as thematerial for-a connecting member is objectionable due to its physicalqualities and even a lead coated member is for similar reasonsunsatisfactory.

The present invention accordingly comprises the formation of the boltand nut above referred to of an alloy having a similar potential asagainst sulphuric acid as that possessed by lead, and havingnevertheless such physical'qualities as will well adapt it for use inthis relation. For this bismuth is found to attain the above advantages,possessing excellent degree of plhlysical strength and being readilyworka e.

Accordingly the bolt and nut are formed of an alloy, the composition ofwhich is illustrated above, and by the use of this alloy in the relationset forth, the various objects of this invention are achieved.

It may be here noted that wherever the term leaden is used, it is to be'ven a broad meaning, to indicate any mem er, the surface of which islead or contains a substantial proportion of lead.

As various changes might be made in the aboveponstruction and in theconstitution of theabove alloy without departing from the see sto d thatthe matter herein described and of this invention, it is to be underthatshown in the accompanying-drawings are to be interpreted as illustrativeand not in a limiting sense.

Having described my invention What I claim is: I

1. In an apparatus of the general nature of that herein described, incombination, a terminal connecting device for connecting v adjacentleaden members of di'lferent material from such'members and ofsubstantially the same potential relative to acid as lead, said devicebeing formed of an alloy of tin and bismuth.

2. In an apparatus of the general nature of that herein described, incombination, a terminal connection for connecting leaden members formedof an alloy of tin and bismuth, comprising several parts of tin to onepart of bismuth.

I 3. In an apparatus ofthe generalnaturc of that herein described, incombination, a connection for leaden storage battery members, comprisinga bolt passing therethrough and formed of an alloy of bismuth and tin,with the tin constituent substantially greater than the bismuthconstituent.

4. In an apparatus of the general nature of that herein described, incombination, a connecting device for storage batteries and the like,comprising a pair of co-acting threaded members each made up of an alloycomprisingtin and bismuth with the tin constituent substantiallyexceeding the bismuth constituent.

5. In an apparatus of the general nature of that herein described, incombination, a connecting device for storage batteries and the like,comprising a pair of co-acting threaded members each made up of an alloycomprising substantially tin five parts to bismuth one part.-

In testimony whereof, I have signed my name to this specification this5th day of January 1922.

THEODORE S. COLE.

